content: package net.minecraft.server;
  
  import java.util.Iterator;
  import java.util.List;
  // CraftBukkit start
  import org.bukkit.entity.Player;
  import org.bukkit.entity.Fish;
  import org.bukkit.event.player.PlayerFishEvent;
  // CraftBukkit end
  
  public class EntityFishingHook extends Entity {
  
      private static final DataWatcherObject<Integer> b = DataWatcher.a(EntityFishingHook.class, DataWatcherRegistry.b);
      private boolean isInGround;
      private int d;
      public EntityHuman owner;
      private int f;
      private int g;
      private int h;
      private int at;
      private float au;
      public Entity hooked;
      private EntityFishingHook.HookState av;
      private int aw;
      private int ax;
  
      public EntityFishingHook(World world, EntityHuman entityhuman) {
          super(world);
          this.av = EntityFishingHook.HookState.FLYING;
          this.a(entityhuman);
          this.n();
      }
  
      private void a(EntityHuman entityhuman) {
          this.setSize(0.25F, 0.25F);
          this.ah = true;
          this.owner = entityhuman;
          this.owner.hookedFish = this;
      }
  
      public void a(int i) {
          this.ax = i;
      }
  
      public void c(int i) {
          this.aw = i;
      }
  
      private void n() {
          float f = this.owner.lastPitch + (this.owner.pitch - this.owner.lastPitch);
          float f1 = this.owner.lastYaw + (this.owner.yaw - this.owner.lastYaw);
          float f2 = MathHelper.cos(-f1 * 0.017453292F - 3.1415927F);
          float f3 = MathHelper.sin(-f1 * 0.017453292F - 3.1415927F);
          float f4 = -MathHelper.cos(-f * 0.017453292F);
          float f5 = MathHelper.sin(-f * 0.017453292F);
          double d0 = this.owner.lastX + (this.owner.locX - this.owner.lastX) - (double) f3 * 0.3D;
          double d1 = this.owner.lastY + (this.owner.locY - this.owner.lastY) + (double) this.owner.getHeadHeight();
          double d2 = this.owner.lastZ + (this.owner.locZ - this.owner.lastZ) - (double) f2 * 0.3D;
  
          this.setPositionRotation(d0, d1, d2, f1, f);
          this.motX = (double) (-f3);
          this.motY = (double) MathHelper.a(-(f5 / f4), -5.0F, 5.0F);
          this.motZ = (double) (-f2);
          float f6 = MathHelper.sqrt(this.motX * this.motX + this.motY * this.motY + this.motZ * this.motZ);
  
          this.motX *= 0.6D / (double) f6 + 0.5D + this.random.nextGaussian() * 0.0045D;
          this.motY *= 0.6D / (double) f6 + 0.5D + this.random.nextGaussian() * 0.0045D;
          this.motZ *= 0.6D / (double) f6 + 0.5D + this.random.nextGaussian() * 0.0045D;
          float f7 = MathHelper.sqrt(this.motX * this.motX + this.motZ * this.motZ);
  
          this.yaw = (float) (MathHelper.c(this.motX, this.motZ) * 57.2957763671875D);
          this.pitch = (float) (MathHelper.c(this.motY, (double) f7) * 57.2957763671875D);
          this.lastYaw = this.yaw;
          this.lastPitch = this.pitch;
      }
  
      protected void i() {
          this.getDataWatcher().register(EntityFishingHook.b, Integer.valueOf(0));
      }
  
      public void a(DataWatcherObject<?> datawatcherobject) {
          if (EntityFishingHook.b.equals(datawatcherobject)) {
              int i = ((Integer) this.getDataWatcher().get(EntityFishingHook.b)).intValue();
  
              this.hooked = i > 0 ? this.world.getEntity(i - 1) : null;
          }
  
          super.a(datawatcherobject);
      }
  
      public void B_() {
          super.B_();
          if (this.owner == null) {
              this.die();
          } else if (this.world.isClientSide || !this.p()) {
              if (this.isInGround) {
                  ++this.d;
                  if (this.d >= 1200) {
                      this.die();
                      return;
                  }
              }
  
              float f = 0.0F;
              BlockPosition blockposition = new BlockPosition(this);
              IBlockData iblockdata = this.world.getType(blockposition);
  
              if (iblockdata.getMaterial() == Material.WATER) {
                  f = BlockFluids.g(iblockdata, this.world, blockposition);
              }
  
              double d0;
  
              if (this.av == EntityFishingHook.HookState.FLYING) {
                  if (this.hooked != null) {
                      this.motX = 0.0D;
                      this.motY = 0.0D;
                      this.motZ = 0.0D;
                      this.av = EntityFishingHook.HookState.HOOKED_IN_ENTITY;
                      return;
                  }
  
                  if (f > 0.0F) {
                      this.motX *= 0.3D;
                      this.motY *= 0.2D;
                      this.motZ *= 0.3D;
                      this.av = EntityFishingHook.HookState.BOBBING;
                      return;
                  }
  
                  if (!this.world.isClientSide) {
                      this.r();
                  }
  
                  if (!this.isInGround && !this.onGround && !this.positionChanged) {
                      ++this.f;
                  } else {
                      this.f = 0;
                      this.motX = 0.0D;
                      this.motY = 0.0D;
                      this.motZ = 0.0D;
                  }
              } else {
                  if (this.av == EntityFishingHook.HookState.HOOKED_IN_ENTITY) {
                      if (this.hooked != null) {
                          if (this.hooked.dead) {
                              this.hooked = null;
                              this.av = EntityFishingHook.HookState.FLYING;
                          } else {
                              this.locX = this.hooked.locX;
                              double d1 = (double) this.hooked.length;
  
                              this.locY = this.hooked.getBoundingBox().b + d1 * 0.8D;
                              this.locZ = this.hooked.locZ;
                              this.setPosition(this.locX, this.locY, this.locZ);
  							if (this.ak) this.die(); // NeonPaper - Prevent going through portals
                          }
                      }
  
                      return;
                  }
  
                  if (this.av == EntityFishingHook.HookState.BOBBING) {
                      this.motX *= 0.9D;
                      this.motZ *= 0.9D;
                      d0 = this.locY + this.motY - (double) blockposition.getY() - (double) f;
                      if (Math.abs(d0) < 0.01D) {
                          d0 += Math.signum(d0) * 0.1D;
                      }
  
                      this.motY -= d0 * (double) this.random.nextFloat() * 0.2D;
                      if (!this.world.isClientSide && f > 0.0F) {
                          this.a(blockposition);
                      }
                  }
              }
  
              if (iblockdata.getMaterial() != Material.WATER) {
                  this.motY -= 0.03D;
              }
  
              this.move(EnumMoveType.SELF, this.motX, this.motY, this.motZ);
              this.q();
              d0 = 0.92D;
              this.motX *= 0.92D;
              this.motY *= 0.92D;
              this.motZ *= 0.92D;
              this.setPosition(this.locX, this.locY, this.locZ);
  
              // Paper start - These shouldn't be going through portals
              if (this.inPortal()) {
                  this.die();
              }
              // Paper end
          }
      }
  
      private boolean p() {
          ItemStack itemstack = this.owner.getItemInMainHand();
          ItemStack itemstack1 = this.owner.getItemInOffHand();
          boolean flag = itemstack.getItem() == Items.FISHING_ROD;
          boolean flag1 = itemstack1.getItem() == Items.FISHING_ROD;
  
          if (!this.owner.dead && this.owner.isAlive() && (flag || flag1) && this.h(this.owner) <= 1024.0D) {
              return false;
          } else {
              this.die();
              return true;
          }
      }
  
      private void q() {
          float f = MathHelper.sqrt(this.motX * this.motX + this.motZ * this.motZ);
  
          this.yaw = (float) (MathHelper.c(this.motX, this.motZ) * 57.2957763671875D);
  
          for (this.pitch = (float) (MathHelper.c(this.motY, (double) f) * 57.2957763671875D); this.pitch - this.lastPitch < -180.0F; this.lastPitch -= 360.0F) {
              ;
          }
  
          while (this.pitch - this.lastPitch >= 180.0F) {
              this.lastPitch += 360.0F;
          }
  
          while (this.yaw - this.lastYaw < -180.0F) {
              this.lastYaw -= 360.0F;
          }
  
          while (this.yaw - this.lastYaw >= 180.0F) {
              this.lastYaw += 360.0F;
          }
  
          this.pitch = this.lastPitch + (this.pitch - this.lastPitch) * 0.2F;
          this.yaw = this.lastYaw + (this.yaw - this.lastYaw) * 0.2F;
      }
  
      private void r() {
          Vec3D vec3d = new Vec3D(this.locX, this.locY, this.locZ);
          Vec3D vec3d1 = new Vec3D(this.locX + this.motX, this.locY + this.motY, this.locZ + this.motZ);
          MovingObjectPosition movingobjectposition = this.world.rayTrace(vec3d, vec3d1, false, true, false);
  
          vec3d = new Vec3D(this.locX, this.locY, this.locZ);
          vec3d1 = new Vec3D(this.locX + this.motX, this.locY + this.motY, this.locZ + this.motZ);
  
          // Paper start - Call ProjectileCollideEvent
          if (movingobjectposition != null && movingobjectposition.entity != null) {
              com.destroystokyo.paper.event.entity.ProjectileCollideEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callProjectileCollideEvent(this, movingobjectposition);
              if (event.isCancelled()) {
                  movingobjectposition = null;
              }
          }
          // Paper end
  
          if (movingobjectposition != null) {
              vec3d1 = new Vec3D(movingobjectposition.pos.x, movingobjectposition.pos.y, movingobjectposition.pos.z);
          }
  
          Entity entity = null;
          List list = this.world.getEntities(this, this.getBoundingBox().b(this.motX, this.motY, this.motZ).g(1.0D));
          double d0 = 0.0D;
          Iterator iterator = list.iterator();
  
          while (iterator.hasNext()) {
              Entity entity1 = (Entity) iterator.next();
  
              if (this.a(entity1) && (entity1 != this.owner || this.f >= 5)) {
                  AxisAlignedBB axisalignedbb = entity1.getBoundingBox().g(0.30000001192092896D);
                  MovingObjectPosition movingobjectposition1 = axisalignedbb.b(vec3d, vec3d1);
  
                  if (movingobjectposition1 != null) {
                      double d1 = vec3d.distanceSquared(movingobjectposition1.pos);
  
                      if (d1 < d0 || d0 == 0.0D) {
                          entity = entity1;
                          d0 = d1;
                      }
                  }
              }
          }
  
          if (entity != null) {
              movingobjectposition = new MovingObjectPosition(entity);
          }
  
          if (movingobjectposition != null && movingobjectposition.type != MovingObjectPosition.EnumMovingObjectType.MISS) {
              org.bukkit.craftbukkit.event.CraftEventFactory.callProjectileHitEvent(this, movingobjectposition); // Craftbukkit - Call event
              if (movingobjectposition.type == MovingObjectPosition.EnumMovingObjectType.ENTITY) {
                  this.hooked = movingobjectposition.entity;
                  this.s();
              } else {
                  this.isInGround = true;
              }
          }
  
      }
  
      private void s() {
          this.getDataWatcher().set(EntityFishingHook.b, Integer.valueOf(this.hooked.getId() + 1));
      }
  
      private void a(BlockPosition blockposition) {
          WorldServer worldserver = (WorldServer) this.world;
          int i = 1;
          BlockPosition blockposition1 = blockposition.up();
  
          if (this.random.nextFloat() < 0.25F && this.world.isRainingAt(blockposition1)) {
              ++i;
          }
  
          if (this.random.nextFloat() < 0.5F && !this.world.h(blockposition1)) {
              --i;
          }
  
          if (this.g > 0) {
              --this.g;
              if (this.g <= 0) {
                  this.h = 0;
                  this.at = 0;
                  // CraftBukkit start
                  PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (Fish) this.getBukkitEntity(), PlayerFishEvent.State.FAILED_ATTEMPT);
                  this.world.getServer().getPluginManager().callEvent(playerFishEvent);
                  // CraftBukkit end
              } else {
                  this.motY -= 0.2D * (double) this.random.nextFloat() * (double) this.random.nextFloat();
              }
          } else {
              float f;
              float f1;
              float f2;
              double d0;
              double d1;
              double d2;
              Block block;
  
              if (this.at > 0) {
                  this.at -= i;
                  if (this.at > 0) {
                      this.au = (float) ((double) this.au + this.random.nextGaussian() * 4.0D);
                      f = this.au * 0.017453292F;
                      f1 = MathHelper.sin(f);
                      f2 = MathHelper.cos(f);
                      d0 = this.locX + (double) (f1 * (float) this.at * 0.1F);
                      d1 = (double) ((float) MathHelper.floor(this.getBoundingBox().b) + 1.0F);
                      d2 = this.locZ + (double) (f2 * (float) this.at * 0.1F);
                      block = worldserver.getType(new BlockPosition(d0, d1 - 1.0D, d2)).getBlock();
                      if (block == Blocks.WATER || block == Blocks.FLOWING_WATER) {
                          if (this.random.nextFloat() < 0.15F) {
                              worldserver.a(EnumParticle.WATER_BUBBLE, d0, d1 - 0.10000000149011612D, d2, 1, (double) f1, 0.1D, (double) f2, 0.0D, new int[0]);
                          }
  
                          float f3 = f1 * 0.04F;
                          float f4 = f2 * 0.04F;
  
                          worldserver.a(EnumParticle.WATER_WAKE, d0, d1, d2, 0, (double) f4, 0.01D, (double) (-f3), 1.0D, new int[0]);
                          worldserver.a(EnumParticle.WATER_WAKE, d0, d1, d2, 0, (double) (-f4), 0.01D, (double) f3, 1.0D, new int[0]);
                      }
                  } else {
                      // CraftBukkit start
                      PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (Fish) this.getBukkitEntity(), PlayerFishEvent.State.BITE);
                      this.world.getServer().getPluginManager().callEvent(playerFishEvent);
                      if (playerFishEvent.isCancelled()) {
                          return;
                      }
                      // CraftBukkit end
                      this.motY = (double) (-0.4F * MathHelper.a(this.random, 0.6F, 1.0F));
                      this.a(SoundEffects.K, 0.25F, 1.0F + (this.random.nextFloat() - this.random.nextFloat()) * 0.4F);
                      double d3 = this.getBoundingBox().b + 0.5D;
  
                      worldserver.a(EnumParticle.WATER_BUBBLE, this.locX, d3, this.locZ, (int) (1.0F + this.width * 20.0F), (double) this.width, 0.0D, (double) this.width, 0.20000000298023224D, new int[0]);
                      worldserver.a(EnumParticle.WATER_WAKE, this.locX, d3, this.locZ, (int) (1.0F + this.width * 20.0F), (double) this.width, 0.0D, (double) this.width, 0.20000000298023224D, new int[0]);
                      this.g = MathHelper.nextInt(this.random, 20, 40);
                  }
              } else if (this.h > 0) {
                  this.h -= i;
                  f = 0.15F;
                  if (this.h < 20) {
                      f = (float) ((double) f + (double) (20 - this.h) * 0.05D);
                  } else if (this.h < 40) {
                      f = (float) ((double) f + (double) (40 - this.h) * 0.02D);
                  } else if (this.h < 60) {
                      f = (float) ((double) f + (double) (60 - this.h) * 0.01D);
                  }
  
                  if (this.random.nextFloat() < f) {
                      f1 = MathHelper.a(this.random, 0.0F, 360.0F) * 0.017453292F;
                      f2 = MathHelper.a(this.random, 25.0F, 60.0F);
                      d0 = this.locX + (double) (MathHelper.sin(f1) * f2 * 0.1F);
                      d1 = (double) ((float) MathHelper.floor(this.getBoundingBox().b) + 1.0F);
                      d2 = this.locZ + (double) (MathHelper.cos(f1) * f2 * 0.1F);
                      block = worldserver.getType(new BlockPosition((int) d0, (int) d1 - 1, (int) d2)).getBlock();
                      if (block == Blocks.WATER || block == Blocks.FLOWING_WATER) {
                          worldserver.a(EnumParticle.WATER_SPLASH, d0, d1, d2, 2 + this.random.nextInt(2), 0.10000000149011612D, 0.0D, 0.10000000149011612D, 0.0D, new int[0]);
                      }
                  }
  
                  if (this.h <= 0) {
                      this.au = MathHelper.a(this.random, 0.0F, 360.0F);
                      this.at = MathHelper.nextInt(this.random, 20, 80);
                  }
              } else {
                  this.h = MathHelper.nextInt(this.random, world.paperConfig.fishingMinTicks, world.paperConfig.fishingMaxTicks); // Paper
                  this.h -= this.ax * 20 * 5;
              }
          }
  
      }
  
      protected boolean a(Entity entity) {
          return entity.isInteractable() || entity instanceof EntityItem;
      }
  
      public void b(NBTTagCompound nbttagcompound) {}
  
      public void a(NBTTagCompound nbttagcompound) {}
  
      public int j() {
          if (!this.world.isClientSide && this.owner != null) {
              int i = 0;
  
              if (this.hooked != null) {
                  // CraftBukkit start
                  PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), this.hooked.getBukkitEntity(), (Fish) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_ENTITY);
                  this.world.getServer().getPluginManager().callEvent(playerFishEvent);
  
                  if (playerFishEvent.isCancelled()) {
                      return 0;
                  }
                  // CraftBukkit end
                  this.k();
                  this.world.broadcastEntityEffect(this, (byte) 31);
                  i = this.hooked instanceof EntityItem ? 3 : 5;
              } else if (this.g > 0) {
                  LootTableInfo.a loottableinfo_a = new LootTableInfo.a((WorldServer) this.world);
  
                  loottableinfo_a.a((float) this.aw + this.owner.du());
                  Iterator iterator = this.world.getLootTableRegistry().a(LootTables.aA).a(this.random, loottableinfo_a.a()).iterator();
  
                  while (iterator.hasNext()) {
                      ItemStack itemstack = (ItemStack) iterator.next();
                      EntityItem entityitem = new EntityItem(this.world, this.locX, this.locY, this.locZ, itemstack);
                      // CraftBukkit start
                      PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), entityitem.getBukkitEntity(), (Fish) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH);
                      playerFishEvent.setExpToDrop(this.random.nextInt(6) + 1);
                      this.world.getServer().getPluginManager().callEvent(playerFishEvent);
  
                      if (playerFishEvent.isCancelled()) {
                          return 0;
                      }
                      // CraftBukkit end
                      double d0 = this.owner.locX - this.locX;
                      double d1 = this.owner.locY - this.locY;
                      double d2 = this.owner.locZ - this.locZ;
                      double d3 = (double) MathHelper.sqrt(d0 * d0 + d1 * d1 + d2 * d2);
                      double d4 = 0.1D;
  
                      entityitem.motX = d0 * 0.1D;
                      entityitem.motY = d1 * 0.1D + (double) MathHelper.sqrt(d3) * 0.08D;
                      entityitem.motZ = d2 * 0.1D;
                      this.world.addEntity(entityitem);
                      // CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
                      if (playerFishEvent.getExpToDrop() > 0) {
                          this.owner.world.addEntity(new EntityExperienceOrb(this.owner.world, this.owner.locX, this.owner.locY + 0.5D, this.owner.locZ + 0.5D, playerFishEvent.getExpToDrop(), org.bukkit.entity.ExperienceOrb.SpawnReason.FISHING, this.owner, this)); // Paper
                      }
                      // CraftBukkit end
                      Item item = itemstack.getItem();
  
                      if (item == Items.FISH || item == Items.COOKED_FISH) {
                          this.owner.a(StatisticList.E, 1);
                      }
                  }
  
                  i = 1;
              }
  
              if (this.isInGround) {
                  // CraftBukkit start
                  PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (Fish) this.getBukkitEntity(), PlayerFishEvent.State.IN_GROUND);
                  this.world.getServer().getPluginManager().callEvent(playerFishEvent);
  
                  if (playerFishEvent.isCancelled()) {
                      return 0;
                  }
                  // CraftBukkit end
                  i = 2;
              }
              // CraftBukkit start
              if (i == 0) {
                  PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (Fish) this.getBukkitEntity(), PlayerFishEvent.State.FAILED_ATTEMPT);
                  this.world.getServer().getPluginManager().callEvent(playerFishEvent);
                  if (playerFishEvent.isCancelled()) {
                      return 0;
                  }
              }
              // CraftBukkit end
  
              this.die();
              return i;
          } else {
              return 0;
          }
      }
  
      protected void k() {
          if (this.owner != null) {
              double d0 = this.owner.locX - this.locX;
              double d1 = this.owner.locY - this.locY;
              double d2 = this.owner.locZ - this.locZ;
              double d3 = 0.1D;
  
              this.hooked.motX += d0 * 0.1D;
              this.hooked.motY += d1 * 0.1D;
              this.hooked.motZ += d2 * 0.1D;
          }
      }
  
      protected boolean playStepSound() {
          return false;
      }
  
      public void die() {
          super.die();
          if (this.owner != null) {
              this.owner.hookedFish = null;
          }
  
      }
  
      public EntityHuman l() {
          return this.owner;
      }
  
      static enum HookState {
  
          FLYING, HOOKED_IN_ENTITY, BOBBING;
  
          private HookState() {}
      }
  }
  